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Article title: « Près de la moitié des espèces de coraux tropicaux menacées d’extinction »
The article discusses a study published in the journal « Current Biology » that evaluated the extinction risk of coral species. The study found that 41% of the 845 coral species assessed are at risk of extinction, primarily due to climate change and human activities such as overfishing and coastal development.
Answer: According to a study, 41% of tropical coral species are at risk of extinction.